<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <view class="goods-info-box">
      <view class="price">¥ {{goods_info.goods_price}}</view>
      <view class="goods-info-body">
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">快递：免运费 -- {{cart.length}}</view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
      <view class="goods_nav">
        <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
      </view>
  </view>
</template>

<script>
  import { mapState,mapMutations,mapGetters } from 'vuex'
  export default {
    
    computed:{
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      // total(newVal){
      //   const findResult = this.options.find(x => x.text === '购物车')
      //   if(findResult){
      //     findResult.info = newVal
      //   }
      // }
      total:{
        handler(newVal){
            const findResult = this.options.find(x => x.text === '购物车')
            if(findResult){
              findResult.info = newVal
            }
        },
        immediate:true
      }
    },
    data() {
      return {
        goods_info:{},
        options: [{
              icon: 'shop',
              text: '店铺'
            }, {
              icon: 'cart',
              text: '购物车',
              info: 0
            }],
            // 右侧按钮组的配置对象
            buttonGroup: [{
                text: '加入购物车',
                backgroundColor: '#ff0000',
                color: '#fff'
              },
              {
                text: '立即购买',
                backgroundColor: '#ffa200',
                color: '#fff'
              }
            ]
      };
    },
    onLoad(option) {
      const goods_id = option.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      async getGoodsDetail(goods_id){
        const { data:res } = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200) return uni.$showMsg
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"')
        this.goods_info = res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=> x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        if(e.content.text === '加入购物车'){
      // { goods_id,goods_name,goods_price,goods_count,goods_small_logo,goods_state }
          const goods = {
            goods_id : this.goods_info.goods_id,
            goods_name : this.goods_info.goods_name,
            goods_price : this.goods_info.goods_price,
            goods_count : 1,
            goods_small_logo : this.goods_info.goods_small_logo,
            goods_state : true
          };
          this.addToCart(goods)
        }
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    height: 100%;
    width: 100%;
  }
  }
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    .price{
      color: #c00000;
      margin: 10px 0;
      font-size: 18px;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods-name{
        font-size: 13px;
        margin-right: 10px;
      }
      .favi{
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-right: 1px solid #efefef;
        color:gray;
      }
    }
    .yf{
      font-size: 12px;
      color:gray;
      margin: 10px 0;
    }
  }
  .goods-detail-container{
    padding-bottom: 50px;
  }
.goods_nav{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
